Sinningia leucotricha

Sometimes called the Brazilian Edelweiss, this unique plant is actually a member of the Gesneriad family (along with African Violets, Goldfish & Lipstick Vines, Gloxinias, and many others.)  Unlike most other members of the family, though, it forms a thick caudex at the base of the stem just above the soil, an organ that helps store moisture for times of drought.  It's slow-growing and only reaches about 10 inches tall at maturity, making it a great subject for an arid dish garden or indoor specimen plant.  
S. leucotricha is native to rocky slopes and cliffs in Southern Brazil, where it goes dormant during the shorter days and cooler weather of the dry season, resuming growth and typically flowering when springtime arrives with more moisture.  Consequently, it wants to have less moisture during fall and winter indoors.  During active growth, allow the top layer of soil to dry between waterings; in fall, reduce watering to little or none until day length and warmer outdoor temperatures return.  Always pot these in a coarse, well-drained medium, like a cactus mix with added chunky perlite, and fertilize sparingly during seasons of active growth.  They are not cold-tolerant, and should never be allowed to drop below 65 degrees Fahrenheit for best success.